I have tested a few electric automobiles with my collection of meters. I was certain that I was going to find something “bad” about them. Interestingly enough, I couldn’t find any of the cars I tested that had an issue. The engineers seem to have done a great job for the most part. The drivers seating area has almost zero changes in magnetic field strength when compared to background. This does not change with the car in motion vs. being stationary. I also found not find any “hot” areas in the cars I tested. That is not to say that all of them may be this way, but at least it seems that the design and shielding are enough to make them a viable form of transportation from an EMF perspective.
The only issues I noticed seemed to be universal to ALL cars. In the passenger side wheel well, there as an area where the gauss meter went to its maximum reading in many cases. This was in both electric and gas powered cars. I determined this to be the location of the blower motor for the heating/cooling system of the car. If the motor is off, then no magnetic field is present. If the motor is on at any speed, there is a large field produced. The safest way to ride as a passenger seems to be with your legs in a figure 4 - the left leg along the center console and the right one bent toward the center console.
I also noticed that any electrial instrument on the dash - from the radio to the interacive screen displays - produced a magnetic and electric field. These dissipated within a few inches of the device being tested. It would make sense to avoid placing your body parts near or against these areas for extended periods of time.